.arcconfig

packaging: fix docker-centos5 - use pythonexe and set to "python" as before

Fix 92a51a45d44c .

{
    "conduit_uri": "https://phab.mercurial-scm.org/api",
    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}